block: move the devcgroup_inode_permission call to blkdev_get

devcgroup_inode_permission is never called for the recusive case, so
move it out into blkdev_get.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
1 file changed